• Jahr
  • 1954–1985
  • Kategorie
  • Militär-Empfänger
  • Radiomuseum.org ID
  • 68887

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 Technische Daten

  • Anzahl Röhren
  • 24
  • Hauptprinzip
  • Super mit HF-Vorstufe
  • Wellenbereiche
  • Mittelwelle und mehr als 2 x Kurzwelle.
  • Betriebsart / Volt
  • Wechselstromspeisung / 115/230 Volt
  • Lautsprecher
  • - Dieses Modell benötigt externe(n) Lautsprecher.
  • Material
  • Metallausführung
  • von Radiomuseum.org
  • Modell: R-390A/URR - MILITARY U.S. different makers
  • Form
  • Rack
  • Abmessungen (BHT)
  • 19 x 10.5 x 16 inch / 483 x 267 x 406 mm
  • Bemerkung
  • AM/CW/MCW; dual/triple conversion; (32) 1-MHz bands; xtal and mech. filter. 54000 sets made by Collins and other manufacturers as well Motorola, Stewart-Warner, EAC, Capehart, AMELCO, Fowler, Teledyne, Dittmore-Freimuth and Helena Rubenstein (last was original, but relabled Collins).
  • Nettogewicht
  • 29.5 kg / 64 lb 15.6 oz (64.978 lb)
  • Originalpreis
  • 2,500.00 $
  • Datenherkunft extern
  • Konrad Birkner

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 Forum

Forumsbeiträge zum Modell: MILITARY U.S.: R-390A/URR

Threads: 3 | Posts: 3

Having to pull the RF Deck to clean the bandchange switch wafers (a chore that I seem to have to do every two tyears or so) reminded me of the need to re download the Y2K manual  http://www.hausernet.com/r390a/ . This is not the original technical manual mentioned in previous posts.

Thanks to the authors for putting this together. Apologies to forum members who may have this revised manual with some colour pictures, but it may be of interest to new owners.

 

Bryce Ringwood, 02.Aug.09

Weitere Posts (1) zu diesem Thema.

R-725 is a direction-finding set with an IF strip similar to the R-390, developed by Motorola and built by Servo and Arvin. No more than 300 sets produced.

R-1274/GRC-129 model is a special variant, widely in use by the NASA for the APOLLO effort.

For further information see Fred Osterman: Shortwave-Receivers - past and present.

Eilert Menke, 23.Apr.04

Weitere Posts (1) zu diesem Thema.